datashape

library0.5.2pypypiunverified

A data description language for describing and validating the structure of tabular and array data. Current version is 0.5.2. The library is in maintenance mode; no active development expected.

data serialization

pip install datashape==0.5.2

package ↗homepage ↗

INSTALL

IMPORT

SIG · DATASHAPE

datashape

datapythonv0.5.2

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

DataShape

✓ from datashape import DataShape

✗ import datashape.DataShape

DataShape is a class in the top-level module, not a submodule.

dshape

✓ from datashape import dshape

✗ from datashape.predicates import dshape

dshape is a function in the top-level module, not in predicates.

Define a data shape and validate a numpy array against it.

from datashape import dshape, DataShape # Define a simple shape ds = dshape('3 * int32') print(ds) # Validate data import numpy as np arr = np.array([1, 2, 3], dtype=np.int32) result = ds.match(arr) print(result)

Debug

Known issues

breakingThe 'var' syntax for variable-length dimensions changed in 0.5.0. Previously 'var' was used directly, now it must be written as 'var * type'.

fix

Update shape strings to use 'var * type', e.g., 'var * int32' instead of 'var int32'.

affects: <0.5.0

deprecatedThe 'datashape.predicates' module is deprecated and may be removed in a future version. Use top-level functions like 'isrecord', 'isscalar', etc., from 'datashape' directly.

fix

Replace 'from datashape.predicates import isrecord' with 'from datashape import isrecord'.

affects: >=0.5.0

gotchaDataShape's 'match()' method returns a boolean, not a validation report. It may raise TypeError if the data type is incompatible.

fix

Wrap match() in a try-except block for type validation, or use 'validate()' method if available (not in 0.5.2).

affects: all

Upgrade

Version history

0.5.2latest on PyPI · released Apr 25, 2016

Audit

Dependencies

numpyrequiredRequired for array type support.

multipledispatchrequiredUsed for dispatch in type promotions.

Agent activity

14 hits · last 30 days

node

OpenAI (training)

Resources

packagehttps://pypi.org/project/datashape/ ↗

homepagehttp://datashape.readthedocs.org/en/latest/ ↗